Computer Heart

Power supply or PSU is a pretty important component in a computer. Often people forget the PSU in assembling a computer, but this component is to ensure the life and durability of other components or can be said to be the computer heart. People tend to choose a faster processor, a more powerful motherboard or memory hurried than choosing quality PSU, say true power rating.

They tend to underestimate the components of this one and choose the default PSU casing or imitation PSU. They tend to think like this, 'PSU do not need an expensive, disposable congenital wrote casing was enough'. I myself used to think so, but I finally realized after PSU casing innate imitation explode successfully. Actually, what is a PSU?? How important is this component? Here's a little information about the PSU that I get from several sources and personal experience.

The term in the PSU

For a person who engaged in the world of electrical engineering, would be familiar with the terms of this article. For the beginners (including me) can listen to a description of some terms in the PSU. In PSU there are 3 units in the electricity, the Volt (V), Ampere (A) and Watts (W). Volt is a unit of electrical voltage, Ampere is a unit of electric current and a Watt is the result of multiplication of current and voltage. There is also the term 'Rails', Rails is sitem electrical conductivity in the form of lines and distinguished by its voltage, the PSU Rails are +3.3 V, +5 V, +12 V,-5V and-12V. When buying a PSU, just look at the positive rail.

The amount of each rail Watt can be calculated by multiplying the voltage rail to the magnitude of the resulting current rail. According to boast that I can, computer components today much power from the +12 V rail, so pay attention when buying PSU power on the 12V rail. There is also a manufacturer of GCC specs include dual / triple and even quad 12V rail to rail. Multiple rail has the advantage if there is damage on one rail, it does not affect the other rail. Peak power, is the maximum power that can be given PSU in a short time, eg 30 seconds. Continuous power is supplied PSU is capable of continuous or prolonged, often called pure power.

Features in the PSU

Overvoltage Protection, which is a useful feature to protect the computer from the power source voltage rise suddenly, usually PSU perform automatic shutdown to protect against overvoltage. Modular Power Supply, which is a power supplay his power connector-plug can be removed as needed. Excess is a modular PSU PC innards look more presentable and weaknesses are contained in modular PSU power points are used to plug the power cable, power point has the potential barriers.

So the more points the more obstacles will power and the more power is wasted. Voltage regulation and ripple, bebean computer power varies, it also causes the output voltage varies PSU (changeable). The less change the better. Hold-time, is the time it can be held / while not getting compensated PSU power source, eg electricity was cut off in a short time and then on again, the power can be compensated PSU (not seemed off the lights).

PFC

Power Factor Correction PFC is. PFC is a measure of how effectively a PSU and was assessed from 0-1. Current leading PSU offers efficiency in the PFC 80Plus or 0.8 are quite close to the maximum one, is extremely efficient. PFC is divided into two, namely PFC Passive and Active PFC. Passive PFC uses a capacitor to filter the AC current to wake up the charge induction. Active PFC uses a circuit to compensate for the charge induction.

In conclusion

PSU is one of the important components in a computer. PSU serves as the heart of the computer, the pumping current for all the components needed. Good PSU will help maintain the durability of peripherals you use. My advice, use a quality power supply to maintain the durability of computer peripherals. I myself have had an unpleasant experience, and thankfully does not sacrifice other peripherals. So, let's replace the PSU with a PSU-quality imitations.